P1E50 Cadillac Code - Hybrid/Electric Vehicle Battery 37 Circuit
Quick Answer
The Hybrid/Electric Vehicle battery pack contains 288 cells. Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1E50 Cadillac indicates Hybrid/Electric Vehicle Battery 37 Circuit.
- Common causes
- Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1E50 Cadillac Description
The battery energy control module monitors the voltage of the 96 battery cell groups through the four hybrid/EV battery interface control modules. Voltage sense circuits are attached to each individual cell group, and these sense circuits terminate at a connector located on the top surface of the battery section. A serviceable auxiliary battery wiring harness joins this connector to a hybrid/EV battery interface control module, also located on the top surface of the battery section. The hybrid/EV battery interface control module encodes the voltage reading and transmits it to the battery energy control module through the battery control harness. There is one hybrid/EV battery interface control module located on battery sections one and two, and two hybrid/EV battery interface control modules associated with battery section three. The hybrid/EV battery interface control module, battery energy control module wiring harness, auxiliary battery wiring harness, and battery energy control module are all considered serviceable components.
The battery energy control module will determine when a fault condition is present. Diagnostics and system status are communicated from the battery energy control module to hybrid/EV powertrain control module 2 through serial data. The hybrid/EV powertrain control module 2 is the host controller for diagnostic trouble code information.
What are the Possible Causes of the DTC P1E50 Cadillac?
- Faulty Hybrid/Electric Vehicle Battery Pack
- Faulty Hybrid/Electric Vehicle Battery Interface Control Module
How to Fix the DTC P1E50 Cadillac?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1E50 Cadillac code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1E50 Cadillac Code
What does the OBDII code P1E50 mean on a Cadillac?
The P1E50 code indicates an issue with the Hybrid/Electric Vehicle Battery 37 Circuit, which refers to a specific electrical or communication fault within the hybrid or EV battery system.
What are the common symptoms of the P1E50 code?
Symptoms may include an illuminated check engine light, reduced hybrid system performance, limited driving range, or the vehicle entering a "limp" mode.
What causes the P1E50 code to appear?
Possible causes include a faulty battery module, damaged wiring or connectors in the battery circuit, a malfunctioning battery control module, or software issues.
Can I drive my Cadillac with the P1E50 code active?
Driving with this code is not recommended, as it may lead to reduced performance or further damage to the hybrid battery system. Have it inspected as soon as possible.
How is the P1E50 code diagnosed?
Diagnosis typically involves scanning the vehicle with an advanced scan tool, inspecting the hybrid battery wiring, testing the battery module, and checking for additional related codes.
What repairs might fix the P1E50 code?
Repairs may include replacing a damaged battery module, repairing or replacing damaged wiring or connectors, updating the battery control module software, or replacing the control module itself.
Does the P1E50 code always mean the hybrid battery needs replacement?
No, the code does not always mean the battery needs replacement. It could be a wiring or control module issue rather than a failure of the battery itself.
Can a weak 12V battery cause the P1E50 code?
While unlikely, a weak 12V battery could cause related hybrid system codes. It’s best to check the 12V battery's health as part of the diagnostic process.
How much does it cost to repair the P1E50 code?
Repair costs vary widely depending on the issue but may range from $200 for wiring repairs to over $1,000 if a battery module or control unit needs replacement.
Is it necessary to update the vehicle software when addressing the P1E50 code?
In some cases, a software update for the battery control module may be required to resolve the issue or prevent it from recurring.
Discuss the causes and fixes for P1E50 Cadillac OBDII Code
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